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		<title></title>
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			table, 
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				border: 1px solid red;
				text-align: center;
				/*合拼单元格的边框*/
				border-collapse:collapse ;
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			a:hover {
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			a {
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	<body>
		<table cellspacing="0" align="center">
			<thead>
				<tr>
					<th>排名</th>
					<th>关键词</th>
					<th>今日搜索</th>
					<th>最近七日</th>
					<th>相关链接</th>
				</tr>
			</thead>
			<tbody>
				<tr>
					<td>1</td>
					<td>鬼吹灯</td>
					<td>345</td>
					<td>123</td>
					<td>
							<a href="http://www.baidu.com" target="_self">贴吧</a>&nbsp;
							<a href="http://www.taobao.com" target="_blank">百科</a>
					</td>
				</tr>
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